Control employed in connection with internal-combustion engines, carbureters, and the like.



. A. M. POOLEY.

CONTROL EMPLOYED IN CONNECTION WITH INTERNAL COMBUSTION ENGINES, CARBURETERS, AND THE LIKE.

APPLICATION FILED DEC. I9. I913.

l 1 77,299. Patented Mar. 28, 1916.v

- such that the lever in the A man erm ne PATENT clarion.

ARTHUR MILNES POOLEY, OF LONDON, ENGLAND, ASSIGNOR TO AUTO WHEELS LIM- ITED, OF LONDON, ENGLAND, A CORPORATION OF GREAT BRITAIN.

CONTROL EMPLOYED IN CONNECTION WITH INTERNAL-COMBUSTION ENGINES,

CARIBURETERS, AND THE LIKE.

To all whom it may concern:

Be it known that I, -ARTHUR MILNES PooLEY, Britain, residing at 85 Gresham street, London, E. C., in the county of Middlesex, England, engineer, have invented certain Improvements in or Relating to the Controls Employed in Connection with Internal Combustion Engines, Carbureters, and the like, of which the following -is a specification.

The present invention has relation to the controls employed in connection with internal combustion engines, carbureters and the like, particularly those used on or in connection with cycle cars, motor cycles, and motor attachments for cycles:

In connection with the controls of such engines and carburetors it is very desirable to reduce the number of hand operated levers to a minimum in order to simplify the driving and controlling of the engine and the present invention has for its object to provide a device or arrangement whereby a single lever, may be employed for controlling the slide or mixture within the carbureter and also for raising the exhaust valve or other device for releasing the compression for enabling the engine to be started.

Conveniently the arrangement may be one extreme pos1-' tion raises the exhaust valve or other com pression release device and in this position the engine can be rotated either by pedaling or pushing the cycle or in any other known manner and when said engine has reached the desired number of revolutions the lever may be moved to an opposite position which will instantly drop the valve or other compression release device and open the throttle.

This invention further comprises a control member so combined with two operated members that only one of the operated members can be displaced when the operating member is moved in one direction whereas the other operated member can be individually displaced when the operating member is moved in the other direction, the arrange ment being advantageously such that the two operated'members cannot be displaced simultaneously.

In order that this invention may be clearly understood and more readily carried into.

Specification of Letters Patent.

Application filed December 19, 1913.

a subject of the Kingdom of Great- ,pivotal Patented Mar. 2a, iaie. Serial No. 807,722.

practice, reference may be had to the appended explanatory sheet of drawings, upon which Figure 1 is a. diagrammatic or general view of the control arrangement constructed according to the present invention. Fig. 2 is a plan view of the handle bar control lever device. Fig. 3 is a side elevation of same. Fig. 4 is a plan of the control device illustratingthe top plate or cap removed. Fig. 5 1s a vertical transverse section through the control device. Fig. 6 is a plan view illustrating the internal operating mechanism, and Fig. 7 is an inverted plan of the disk and its projection provided upon the operating control lever.

In a convenient embodiment of the present invention the handle bar control lever 1 may be adapted to work upon a plate 2 which is provided with a short circumferential wall 3 and also a clip 4 for attaching said plate to the handle bar or the appropriate position on the cycle. The lever itself is provided at its pivotal extremity with a flat circular disk 5 and this disk is adapted to work fiatwise above the plate 2 adjacent to the wall 3 thereof and may be provided with projecting parts 6 for abutting against the extremities of the wall 3 and so limiting the movement of the lever.

The disk 5 is journaled on a central hollow spindle or tubular part 7 mounted centrally on the plate 2 also forms a journal for two indepedent arms or levers 8 and 9 which are disposed to point in opposite directions as illustrated in Fig. 8. The extremities of these small arms 8 and 9 are attached to Bowden cables and said cables pass through tangentially directed tubular parts 12 and 13 which form at their outer extremities stops for the Bowden sheaths.

Provided on the face of the circular disk 5 mounted upon the lever 1 is a small segmental of other shaped projection 14 which exactlyfits the segmental space formed by the two small arms or levers 8 and 9 hereinbefore described, as illustrated in dotted lines in Fig. 6.

In operation the lever I is moved to one extreme point in which position the projection-14 on the disk 5 bears against the small arms 9 and so moves same thus operating the one cable llwhich in turn operand said central spindle.

ates or lifts the valve. The handle lever 1 is then moved over to an opposite position in which the small projection 14 on the disk releases the one pivotal arm 9 and contacts the other arm 8 so operating or pulling the second cable 10 and so opening the throttle or slide or valve 15 within the carbureter. The one Bowden cable 10 may be attached directly to the slide 15 within the carbureter while the second cable 11 may be adapted to operate the exhaust valve of the engine through the medium of two small pivotal levers 16 or other device disposed at the end of the cable 11. These two levers which may comprise one suitable mechanism described by wav of example, may lie pivoted together at or about their centers as illustrated in Fig. 1, and the two extremities 17 may be of looped or circular formation to surround the tappet. The other two extremities 18 are attached one to the Bowden sheath and the other to the cable while a spring is disposed between same. llhus it will be seen that upon moving the lever 1 to operate the cable 11 the two extremities 18 of the arms are brought close together and the other extremities 17 are forced "farther apart and so the valve can be raised.

Reverting to the construction of the handle bar control device the circular disk may be retained in any desired. position by means ol a friction plate ll) and spring 23 which latter is held firmly against the plate 19 by means of an external cap 20 positioned by means of a. screw or pin 21 working in the collar ortube 7. Further the connection between the cables 10 and 11 and the arms 8 and 9 respectively may be such that the said cable can readily be separated from the arms. Conveniently the extren'iities of the cable may be provided with small circular enlargements 22 which are disposed in cor responding holes or perforations in the arms 8 and 9 while the cables normally lie within grooves in the edges of the arms; Whenit is desired to remove the cables from the'arms the latter are firstly removed from the hollow tubular part 7 and then said arms are given a quarter turn until the cables are brought from out their respective channels when the enlargement 22 can readily be removed from the arms 8 and 9.

- The two arms 8 and 9 may be of reduced thickness where same encircle the tubular part 7 as illustrated in Fig. 5'. Further the lever 1 may be adapted to move through a semi-circle or nearly a semi-circle and the arrangement may be such that the neutral position, 6. when neither the exhaust valve is raised nor the throttle opened, is about one third of the distance around the semi-circle,

the smallest movement or range of the lever being suitable for lifting the valve while the greatest range is suitable for controlling the gas mixture.

lVhat I claim as myinvention and desire to secure by Letters Patent is A control devicecomprising in combination a lever mounted to oscillate in a single plane only. two Bowden cables, and means eoactin g with said lever and the ends of said cables to actuate either of the cables without actuating the other one, said means consisting of a casing, a disk revolubly mounted in said casing and having a projection thereon. and'oscillatory members to which the ends of said cables are coupled and which are adapted to be actuated by said projection so as to be rotated in the same direction as the latter, said disk being com bined' with said lever.

In witness whereo'l I have hereunto set my hand in the presence of two witnesses ARTHUR lVl IlJNES POOLEY.

\Vitnesses:

F. "W. VALLAT, ROBERT lVoonwxno, Jr. 

